Means for packing joints.



PATENTED MAY 1, 1906.

J; H. JONES.

MEANS FOR PACKING JOINTS. APPLIOATION FILED 13110.5, 1904.

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UNITED STATES PATENT oEEioE.

JAMES H. JONES, OF CHICAGO, ILLINOIS.

Application filed December 5. 1904. erial No. 235,523.

This invention relates to improvements in packing for jbints, and more particularly to a preferred form packing adapted to be carried upon one of two connected members, and when said members aremoved relative to each other to be forced in and out therewith according to such relative movement, thereby forming a fluid-tight packing capable of adjusting itself to the position of said members.

The object of'this invention is to provide a cheap and durable packing adapted to be wedged between two interfitting members.

and when said members ,are forced together or are'adjusted longitudinally of each other to adjust itself to such movement and tightly close the joint.

The invention consists in the matters hereinafter described, and more fully pointed out and defined in the appended claims.

I nthe drawings, Figure 1 is a view, partly in section and partly in side elevation, of an incandescent lamp provided with packing means embodying my invention. Fig. 2 is a longitudinal section of apipe and check-valve,

illustrating afurther use to which my invention is adaptable.

As shown in said drawings, referring first to Fig. 1, in which an incandescent lamp is provided with fluidrtight'joint to enable it to be used in fluids without danger of shortcircuiting, A represents alight-plug, of any and'material, provided with a central bore a, which atthe end adapted to receive the bulb A opens into an enlarged bore, provided with a threaded sleeve 0., in'

which said bulb is screwed in the usual manner. The inner end of said sleeve 0/ 1S insu- .lated;from the lamp-contact B by means of any desired insulating material I), such as porcelain, and the lead-wires C and C are engaged thereto and to said contact in the usual manner and extend outwardly through the bore in said fplug A. In the end of said bore a opposite 0m the bulbA is the tube Specification of Letters Patent.

MEANS FOR PACKING JOINTS- Patented May 1, 1906.

or sleeve D, which, as shown, has threaded engagement in said plug and projects outwardly a short distance therefrom, and molded thereon about said leads is a filling of porcelain or other material D, impervious to water or other fluids, which prevents the fluid from entering the plug at that end and coming in contact with the connections. The end of the plug adapted to receive the bulb A is cored to provide aconical orbell-sha ed recess about the small end of said bu b, the slant of which is at a greater angle to the longitudinal axis of the plug than is the slant of the bulb and which forms a seat for the packing-ring E, carried u on the bulb below the threaded end thereo Said ring may be of any preferred material, but preferably is constructed of a material having considerable flexibility, such as rubber, leather, or the like, so that as the bulb is screwed into its socket it will jamb the ring into engagement with the walls of said recess, causing it to roll slightly between the bulb andsaid walls,

. thereby adjusting itself-to the movement. If

said ring is constructed of a non-flexible material, such as hard rubber or gutta-percha, it

is carried inwardly with the bulb-and tightly jammed against the walls of the plug and forms a fluid-tight joint.

"A further use to which my improved packing is adapted is shown in the construction illustrated in Fig. 2, wherein F represents a pipe of metal or any preferred material, provided with a check-valve G, of the usual or any desired construction, which, as shown, comprises a tapered shell provided centrally with a transverse valve-seat g, adapted to receive the conical valve-closure g, the stem'g of which extends outwardly through the smaller end of said shell and is provided with a cross-bar or stop 9 adapted to limit the movement of said closure away from its seat. At the smaller end of the shell is provided an outwardly-directed peripheral flange g, above. which, between the she l and the pipe, is the packing-ring H, similar to that before described, which is normally held in place by the wedging action of the shell therein caused by the pressure of the fluid above the same when the valve is closed and also by the weight of said shell. Should it, however, from any cause drop downward, it is prevented from escaping by means of said flange g at the lower end of the shell. I

The operation is as follows: In the construct ion shownin Fig. 1 'the packing-ring E i in partially inclosing the bulb is placed over the small end of the bulb and when said bulb is screwed into the socket a of the light-plug A it is wedged tightly between the bulb and the walls of the conical recess in the end of said plug, and if made of flexible material it will tend to roll inwardly therein and form a tight and self-adjusting packing, which will prevent theingress of moisture to the light-contacts. If of nonflexible material, it will be jammed tightly between the outer wall and the bulb and completely close the opening. I In the construction shown in Fig. 2 the check-Valve G being tapered will tend, by its own Weight and by the weight of the fluid above the same when closed, to force itself downwardly into the packing-ring H and wedge said ring firmly against'the walls of the pipe, as before described, thereby preventing the passage of any fluid between the shell and the pipe.

While I have shown only two uses to which my packing may be adapted, it is obvious that it may be used for many other purposes, and many details of construction may be varied without departing from the principles of my invention.

I claim as my invention 1. The combination with a lamp-socket having a conical recess in one end'thereof, of a threaded sleeve extending inwardly from said recess, a lamp-bulb engaged in said sleeve and affording between the same and the walls of said recess an annular conical chamber of greater width at its outerthan at its inner end and a packing-ring, cylindric in crosssection, fitted closely between the bulb and the walls of'said recess and adapted when the bulb is moved inwardly to wedge in said chamber with a rolling movement.

2. The combination with a light-plug havin a longitudinal bore therethrough of a light-bulb engaged in said bore, a conicalshaped chamber in the outer end of said plug and having its walls slanting upwardly and inwardly at a sh htly-greater angle than the walls of the bu b and forming therewith an annular wedge-shaped recess, a resilient ring, cylindrie in cross-section carried on said bulb and adapted when the latter is secured in place to roll between thebulb and plug with a wedging action.

8. In a device of the class described the combination with a lamp-bulb having a threaded connection thereon, of a light-plug having a threaded socket therein adapted to receive said connection, a parton said I lug extending outwardly over the bulb anr affording a conical chamber about the same and an annular resilient packing member engaged between the bulb and said part and adapted to wedge therebetween with a rolling action.

4. The combination with a light-plug having a conical recess in the end thereof of a light-bulb having threaded engagement with said plug and out of contact with the walls of the recess and partly inclosed thereby and an annular cylindric packing-ring supported solely by friction al engagement with the walls of said recess and bulb and adapted to roll therebetween when the bulb is inserted.

5. The combination with a light-bulb of a light-plug provided with a conical recess therein having its walls slightly divergent from the walls of the bulb and extending outwardly over the same and a cylindric packingrin fitting closely between said walls and bul and adapted when the bulb is being secured in the plug to be wedged into the plug with a rolling action.

In testimony whereof I have hereunto afed my name in the presence of two subscribing witnesses.

JAMES H. JONES. Witnesses:

C. W. HILLs, W. W. WITHENBURY 

